Question

solve using factoring: x^2-3x-18

Answer 1

(x + 3) • (x - 6)

Answer 2

(x+3)(x-6)

Answer 3

To do this problem x^2-3x-18 we can ask our self two numbers that are the product of -18, meaning what times what equals 18 and ask our self if the two numbers are the sum of -3, which is the middle number.

So 3 times -6 = -18
and
3 + (-6) = -3

This means 3 and -6 will work. Now just split the x^2. So we get (x+3)(x-6)